subscore: Computing Subscores in Classical Test Theory and Item Response Theory

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Functions for computing subscores for a test using different methods in both classical test theory (CTT) and item response theory (IRT). This package enables three sets of subscoring methods within the framework of CTT and IRT: Wainer's augmentation method, Haberman's three subscoring methods, and Yen's objective performance index (OPI). The package also includes the function to compute Proportional Reduction of Mean Squared Errors (PRMSEs) in Haberman's methods which are used to examine whether test subscores are of added value.

Author
Shenghai Dai [aut, cre], Xiaolin Wang [aut], Dubravka Svetina [aut]
Date of publication
2016-12-03 00:53:13
Maintainer
Shenghai Dai <dais@indiana.edu>
License
GPL (>= 2)
Version
2.0

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Man pages

CTTsub
This main function estimates true subscores using different...
data.prep
This function prepares data into a requried list format
scored.data
Sample scored data
subscore.s
Computing subscores using Haberman's method based on observed...
subscore.sx
Computing subscores using Haberman's method based on both...
subscore.Wainer
Estimating true subscores using Wainer's augmentation method
subscore.x
Computing subscores using Haberman's method based on observed...
test.data
A list of objects that include both test information and...
Yen.OPI
Estimating true subscores using Yen's OPI

Files in this package

subscore
subscore/NAMESPACE
subscore/data
subscore/data/test.data.rda
subscore/data/scored.data.rda
subscore/R
subscore/R/subscore.x.R
subscore/R/Yen.OPI.R
subscore/R/subscore.s.r
subscore/R/data.prep.R
subscore/R/CTTsub.R
subscore/R/subscore.Wainer.R
subscore/R/subscore.sx.R
subscore/MD5
subscore/DESCRIPTION
subscore/man
subscore/man/CTTsub.Rd
subscore/man/subscore.sx.Rd
subscore/man/Yen.OPI.Rd
subscore/man/subscore.s.Rd
subscore/man/data.prep.Rd
subscore/man/subscore.x.Rd
subscore/man/test.data.Rd
subscore/man/subscore.Wainer.Rd
subscore/man/scored.data.Rd